31
Filters Lifetime Calculation Reference Tab
With the air exchange rate of 0.6h
-1
, the indoor pollutants are maintained at 35μg/m
3
, and after 12
hours. The minimum mass of particles that shall be treated by the air purifier can be found in Table G.1.
Unit: mg
Note 1: The officially published mass concentration of the fine particulate matter (Ambient Air Quality Index) is roughly adopted as mass
concentration of outdoor (the ambient atmosphere) particles.
Note 2: An application example of Table G.1: For the range P3 of the air purifier for the particles’ Cumulative Cleaning Mass(CCM) tested
by Appendix D, with the room size of 20m
2
and mass concentration of outdoor pollutant 300μg/m
3
, 67 mg of daily treatment amount,
then the unit can normally work for (8000-12000)/67= (119-179) days, or around 5 months. The above estimation is based on its initial
value of CADR. However, during actual use, with the attenuation of CADR, the “average concentration” of the air purifier may be higher
than the concentration level of indoor pollutant specified by GB/T 18883.
Note3: If the daily working duration of the unit is shorter or longer than 12 hours, the values in Table G.1 shall be appropriately decreased
or increased.
With the indoor formaldehyde maintained at 0.1 mg/m
3
, and after 12 hours, the minimum mass of formaldehyde that
shall be treated by the air purifier can be found in Table G.2.
Unit: mg
Note 1: This table adopts “Less favorable principle” to the formaldehyde release (release rate).
Note 2: An application example of Table G.2: For the range F3 of the air purifier for the particles’ Cumulative Cleaning Mass (CCM) tested
by Appendix E, with the room size of 20m
2
and background concentration of indoor pollutant 0.2mg/m
3
, 35mg of daily treatment amount
corresponding to that in Table G.2, then the unit can normally work for (1000-1500)/(35)≈(28-42) days, or around 1 month. The above es-
timation is based on its initial value of CADR. However, during actual use, with the attenuation of CADR, the “average concentration” of
the air purifier may be higher than the concentration level of indoor pollutant specified by GB/T 18883.
Note 3: If the daily working duration of the unit is shorter or longer than 12 hours, the values in Table G.2 shall be appropriately decreased
or increased.
G.1
Table G.1 Average daily treatment
quantity of particle with air purifier
Outdoor particle mass concentration Cout (μg/m
3
)
100
150
200
250
300
350
400
Room size(m
2
)
10
6
13
20
26
33
40
47
15
9
19
29
40
50
60
71
20
12
25
39
53
67
81
94
25
14
32
49
66
84
101
118
30
17
38
59
79
100
121
142
35
20
44
69
93
117
141
165
40
23
51
78
106
134
161
189
45
26
57
88
119
150
181
213
50
29
63
98
132
167
202
236
G.2
Table G.2 Average daily treatment qu -
antity of formaldehyde with air puri
fi
er
Initial stable concentration of indoor formaldehyde C
0
(mg/m
3
)
0.15
0.2
0.25
0.3
Room size(m
2
)
10
9
17
26
35
15
13
26
39
52
20
17
35
52
69
25
22
43
65
86
30
26
52
78
104
35
30
60
91
121
40
35
69
104
138
Summary of Contents for Blueair Classic 400
Page 1: ...中文 简 English ...
Page 2: ...2 ...
Page 4: ...4 综述 Blueair 400 系列 Wi Fi FILTER AUTO PM 2 5 VOC 480i 型号 480i ...
Page 5: ...5 4 4 5 6 7 8 9 10 1 2 3 4 控制档位 设备概述 控制方式 480i 1档 2档 3档 ...
Page 18: ......
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